1099540768 has 12 divisors (see below), whose sum is σ = 2164720950. Its totient is φ = 549770368.

The previous prime is 1099540753. The next prime is 1099540769. The reversal of 1099540768 is 8670459901.

It can be written as a sum of positive squares in only one way, i.e., 816359184 + 283181584 = 28572^2 + 16828^2 .

It is not an unprimeable number, because it can be changed into a prime (1099540769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17180293 + ... + 17180356.

Almost surely, 2^1099540768 is an apocalyptic number.

It is an amenable number.

1099540768 is a deficient number, since it is larger than the sum of its proper divisors (1065180182).

1099540768 is an equidigital number, since it uses as much as digits as its factorization.

1099540768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34360659 (or 34360651 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 1099540768 is about 33159.3239979346. The cubic root of 1099540768 is about 1032.1364421086.

The spelling of 1099540768 in words is "one billion, ninety-nine million, five hundred forty thousand, seven hundred sixty-eight".